Fluid-control device



June 10,l 1930.l A. P. PLAUT 1 FLUID CONTROL DEVICE Filed Dec. 19 1921 2 Sheets-Sheet l June 10, 1930. A, R PLAUT FLUID CONTROL DEVICE Filed Dec. 19, 1921 2 Sheets-Sheet 2 lill Patented June 1o. 1930 c ANTOINE?. PLAUT, or'l DETROIT, MIGHT@ BRASS MANUFACTURING COMPANY, or

MICHIGAN V,.Apfilieation led VDecember The invention, relates to iuid control de vices and is adapted particularlyfor'use in controlling a portion ofthe exhaust gases of 'an internal combustion engine for heating 5 the explosive mixture passing to the engine.

The invention has for its main object the provision of a device by which theratio between.

` the amount of fluid passingthrough a main v conduit and a by-pass may be automatically varied without the necessity of mechanical means, such as valves and the like. y

Other objects of the invention reside in the novel features of construction andv combinations and arrangements of parts as more ful- D hereinafter set forth; i*

In the drawings:

Figure 1 is a centralsection'fthrough ay iiuid control device embodying my. inven-k tion;

l ..20 Figure 2 is a sectional plan view of a moldified construction on the line 2-2 ofFigure 4; Figures 3 and 4 are respectivelycross sec-l tions on lines 3--3 and tf-4 of Figure 2.

As shown in Figure l, the device comprises ..25 the inlet 1, the axially aligned main conduit 2 andthe transverse bypass 3. To automat ically control the fluid passing through the main conduit 2, the latter has a restricted f entrancel 4 with the annular inclinedfshoulder 5 vconnecting' vthe inlet and main conduit,

this shoulder beingy inclined in the direction of travel taken by the fluid. The bypass 3V connects into the inletfl ata point in advance of this annular shoulder. y In the operation of the apparatus above described it is found that as the velocity of the fluid ,through the inlet l is increased-a larger proportion of the fluid rpasses through theby-pass than-it does at lower velocities and this maybe ex#l plained bythe fact that thefluid strikesv and is deected by the annular inclined shoulderA 5, thereby forming eddiesnwhich automati- -cally retardthe` passage of the fluid through the main conduit.Y At, the higher velocities the shoulder is more pronounced than' at the lower velocities so that the ratio` between the amount of flow. through the main conduit varies with different velocities.-

FLUiD-ooNTn-on the resistance dueto the eddiesformedvby i and by-pa'ss does not remain constant, but'A pass conduits vare preferably horizontal,

y y 1,762,193; y i' whereas in vthe easel of gases, the positiono'f Figures 2,: 3' and 4, the -fluid'control' device 'is'lu'sed 'for *automatically controlling l the amount vofexhaust gases passing into a cha`1n'A berv surrounding portion* of1an"induction'V conduit ,leading tol an internal'- combustion sage of 'explosive .mixturek fleadingftq 'an inf-- tern'al ',.combus'tion engine. 9 fis an j inlet' n adaptedY for fthe* passage; lof exhaust f'gases f the amount of exhaust gases passing'tl'nrough l the device; there is thegvalvel tothe rear of thevpointpf lcommunication of the heatingv chamberaoutlet-and"the bypass*outletQ*this'L valve bein'gactuated by* suitable ;mean's.

forexampl'e; the levers 14 l connected to, the,

shaft '151 upon *which* the'-valve` mounted. i

' 'Withfthis'arrangement, the action ofthe' Whenthe exli-austfgases areepas'singzthrough restricted 'passage Sand thehe'ating Lchamber 6:51 jlliovveser; asthevelo'cityfof these exhaust gases increases beyond af pertain point; .l refsistarfce'-jto' their passingthrough {,'tlie' passage V 8' sincijea'sed and they seekfthe "path of travel of the-least resistance; whichis through the? byp rissa/sof that theE heat conducted to the' explosive mixture passing through ,the pas-"- sageway 7 is not allowed toibecometoohighg Vexl-iaust gases issubstantially:thesameasthat'y of' thelfluid in the dvicejshown' in;Figurer lieviA Y In other words, means is provided for automatically regulating the heating of the explosive mixture without the necessity of valves or the like. Thus it is seen that the amount of exhaust gases entering the heating chamberdepends upon the velocity of the exhaust gases entering the inlet which'in turn automatically increasing the proportion of heating fluid passing through said ley-pass as the velocity through said inlet conduit 1ncreases.

In testimony whereof I aiix my signature. Y, ANTOINE P. PLAUT.

Y depends upon the amount of explosive mixv I i ture passing through the -device 'to the engine.

',Fromthe above description it will be readily seen that I have provided a device vhavpassageway of the ing an inlet, a main conduit and a bypass so constructed that the flow of the Huid passing through the vmain conduit is vautomatically; controlled. Furthermore, it will be seen that I have more particularly brought vout a heating fluid control device which automaty ically controls the amount of heating Huid f used for heating the explosive mixture passlng to van internal combustion engine, thls heating V fluid depending upon the-amount of explosive mixturepassing to the engine and upon the speed of the'engine. What I claim' as my invention is body having a fuel passageway therethrough, ai chamber surrounding said passageway and adapted for.V the passage ofa heating fluid, saidchamber having arestricted inlet, and a Y by-passpassageway connecting into said in-k y let forward of its restriction.

Y 3.v In a fuel vaporizer, the combination of,

a body* having a` fuelA passageway therethrough, a main heating passageway in heat conducting relationship therewith, an inlet conduit for heating fluid connected to said heating passageway and provided with means forming an abrupt contraction in section, an

outletfconduitconnected to said'heating passageway,- and a by-pass not in heat conducting relation with said fuel passageway, said by-pass being connected vinto said inletcon- GtiV duit infadvanceof said Vcontracted section and also connected to said outlet conduit.

V14..,In a fuel Vaporizer, the combination withfa fuel passageway, of a main heating passageway in yheat conducting vrelationship therewith, a `by-pass not in heat conducting relationship with; saidfuel passageway, an inlet conduit connected to both said main passageway and said by-pass, and means-fixedly arranged inv said inletconduit'between said mai n vpassageway and Asaid .by-pass for l. In afuel ,vaporizer the combination of a 

